BR8HS-10 1134 NGK standard nickel Spark Plug for Marine Engines. Fits various Suzuki, Nissan, Tohatsu, and Yamaha outboards.

Equivalent to OMC 503709, 765963, Yamaha BR8-HS100-00-00, Honda BR8HS-10.

Thread diameter: 14mm
Thread pitch: 1.25mm
Seat type: gasket
Reach: 12.7mm (1/2")
Hex size: 13/16" (21mm)
Terminal type: removable nut
Gap: .039" (1.0mm)

Please check the part numbers for your specific fitment needs.

cat-E66